Toro Z Master 74060 Quick start guide

FormNo.3418-249RevA
HorizonControlModule
ForZMasterLawnMowers
ModelNo.74060—SerialNo.400000000andUp
ModelNo.74064—SerialNo.400000000andUp
ModelNo.74072—SerialNo.400000000andUp
ModelNo.74074—SerialNo.400000000andUp
ModelNo.74096—SerialNo.400000000andUp
SoftwareGuide
WARNING
CALIFORNIA
Proposition65Warning
ThisproductcontainsachemicalorchemicalsknowntotheStateofCalifornia
tocausecancer,birthdefects,orreproductiveharm.
Readthisinformationcarefullytolearnhowtooperateandmaintainyourproductproperlyandtoavoidinjury
andproductdamage.Youareresponsibleforoperatingtheproductproperlyandsafely.ReadyourOperator’s
Manualformoreinformation.
ScreenIcons
Theinformationscreenusesthefollowingicons:
GaugeandMeters
LowEngineSpeed
Processing
AdvancedSettings
Transmission-OilMaintenance
BatteryVoltage
MaintenanceandService
Engine-OilTemperatureEngineHours
©2017—TheToro®Company
8111LyndaleAvenueSouth
Bloomington,MN55420
Registeratwww.Toro.com.OriginalInstructions(EN)
PrintedintheUSA
AllRightsReserved*3418-249*A

FuelLevelEngine-OilMaintenance
Cancel/Exit
PTO
No
*Locatedonbottomrowofsome
menuscreens
ToggleBetweenScreens
ParkingBrakeYesEnter/Return
NeutralLock
*LocatedintoprowofInformationScreen
DecreasePrevious
OperatorPresenceControl(OPC)IncreaseNext
MaxEngineSpeedPlay/StartReset
EfcientEngineSpeedPause/Stop
ErrorWarning
2

Hydraulic-FluidTemperatureEngineGlowPlugsActive
EngineDieselParticulateFilter
EngineDPFRegeneration
Inactive/Failed/InterruptedEngineDPFSootPercentage
Gearbox-OilMaintenance
RecommendedEngineCooldownTimeShutOffEngine
ProductOverview
g225792
Figure1
1.LDU(LogicDisplayUnit)3.Keyswitch
2.Deck-liftswitch4.PTOengagementswitchg228164
Figure2
LDU(LogicDisplayUnit)
1.Screen3.Buttons
2.LEDstatuslight
3

Screen
Thescreendisplaysiconsandinformationrelativeto
machineoperationandisbacklitforviewinginlowlight
situations.Thescreenislocatedabovethebuttons.
RefertotheScreenIcons(page1)sectionforicon
descriptions.
LEDStatusLight
TheLEDstatuslightismulti-coloredtoindicatethe
systemstatusandislocatedontherightsideofthe
panel.Duringstartup,theLEDilluminatesredto
orangetogreentoverifyfunctionality.
•SolidGreen:indicatesnormaloperatingactivity
•BlinkingRed:indicatesthatafaultisactive
•BlinkingGreenandOrange:indicatesthata
clutchresetisrequired
Buttons
Themulti-functionalbuttonsarelocatedatthebottom
ofthepanel.Theiconsdisplayedontheinformation
screenabovethebuttonsindicatethecurrentfunction.
Thebuttonsallowyoutoselecttheenginespeedand
navigatethroughsystemmenus.
Alarm
Ifanerroroccurs,anerrormessagedisplays,theLED
turnsred,andthealarmsoundsaudiblyasfollows:
•Afastchirpsoundindicatescriticalerrors.
•Aslowchirpingsoundindicateslesscriticalerrors,
suchasrequiredmaintenanceorserviceintervals.
Note:Duringstartup,thealarmsoundsbrieyto
verifyfunctionality.
InformationScreens
Themaininformationscreensareasfollows:
•StartupScreen(page4)
•Engine-OffScreen(page4)
•Engine-OnScreen(page4)
StartupScreen
Duringstartup,thescreendisplaysastartupgraphic
for1second,soundsthealarm,andilluminatesthe
LED,changingfromredtoorangetogreen.
EngineScreens
Engine-OffScreen
Whenthekeyisonwithouttheenginerunning,the
Engine-Offscreendisplays(Figure3).
g216582
Figure3
1.Thescreentogglesbetweenhoursremaininguntilthe
nextrequiredtransmission-oilmaintenanceandgearbox
maintenance(ifequipped).
2.Batteryvoltagedisplay
3.Safetyinterlockstatusindicators
4.Enginedieselparticulatelter(DPF)sootpercentage—The
levelisshownonabardisplay.Thebargraphllsinas
thesootpercentageincreases.Ahighsootpercentage
indicatesthataDPFregenerationmaybeneeded.
5.Thescreentogglesbetweenhoursremaininguntil
engine-oilmaintenanceandthenon-resettableenginehour
counter.
Engine-OnScreen
Whentheengineisrunning,theEngine-Onscreen
displays(Figure4).
g216584
Figure4
1.Enginespeedmode4.Safetyinterlockstatus
indicators
2.Hydraulic-uid
temperature
5.Enginespeed
3.Enginetemperature6.Recommendedengine
cooldowntime
4

EngineSpeedMode
3modesareavailable:LOW,EFFICIENT,andMAXIMUM.
•LOW:Lowtransportspeed/Lowidleforreducing
deckpackinginwetmowingconditions.
•EFFICIENT:Mediumtransportspeedandmaximum
fueleconomyandnormalmowingconditions.
•MAXIMUM:Maximumtransportspeed/Highidlefor
extrememowingconditions.
Thepanelilluminatesshowingthecurrentengine
speedmode(LowisselectedinFigure4).
SafetyInterlockStatusIndicators
Theseilluminatewheneachcontrolisinthestarting
position(i.e.,PTOdisengaged,parkingbrake
engaged,motion-controlleversintheNEUTRAL-LOCK
position,andtheoperatorispresent).
•ThePTOmustbedisengaged,brakeengaged,
andmotion-controlleversout(NEUTRAL-LOCK
position)tostarttheengine.(Youdonotneedto
beintheseattostarttheengine.)
Note:ThestartercrankswiththePTOswitchin
theON(pulledup)position;however,thesystem
disengagesthePTOandaPTOreseterroroccurs.
EngagingthePTOrequiresyoutoresetthePTO
switchbyturningitOFF(pusheddown)andON.
•YoumustbeintheseatwhilethePTOisengaged,
theparkingbrakemustbedisengaged,orthe
motion-controlleversmustbemovedinward;
otherwise,theengineshutsoff.
•Theengineshutsoffifeithertheleft,theright,
orbothleversaremovedfromNEUTRAL-LOCK
positionwhiletheparkingbrakeisengaged.
Note:RefertothemachineOperator’sManualto
checkthesafetyinterlocksystem.
EngineTemperature
Abargraphdisplaystheenginetemperature.When
thetemperatureishighandapproachinganoverheat
condition,thebargraphashes.Whentheengine
hasoverheated,thebargraphllscompletely.
EngineSpeed
Displaysthespeedoftheengine.
FuelLevel(iffuelsenderisavailable)
Thefuellevelisshownonabardisplay.Anerror
appearswhenthefuelleveldropstoapproximately
3.8L(1USgallon)remaininginthetank.
RecommendedEngineCooldownTime
Therecommendedtimetoidletheenginebefore
itshutsdownisshownonabardisplay.Thelevel
movestowardthebottomofthedisplayastheengine
coolsandisemptywhenitissafetoshutoffthe
engine.Ifyoushutofftheenginebeforethecooldown
periodhasexpired,afaultisloggedinthehistorical
faultlog.
EngineDieselParticulate
Filter(DPF)Regeneration
Screens
CAUTION
Duringregeneration,thedieselparticulate
lterbecomesextremelyhotandcancause
seriousburns.
Keepyourbodyandhandsawayfromthe
engineduringregeneration.
Thedieselparticulatelter(DPF)removesparticulate
matterfromtheexhaustandpreventsitfrombeing
dischargedintotheair.Astheparticulatescollect
inthelter,theengineperformsaregenerationto
preventclogginganddecreasedengineperformance.
Mostregenerationsareperformedinthebackground
anddonotimpactoperation.Thereare4modes
formaintenance:passiveregeneration,auto
regeneration,stationaryregeneration,andrecovery
regeneration.
1.PassiveRegeneration
Thisistheprimarymoderegenerationthat
occursautomaticallyduringnormaloperation.
Whentheengineisrunningatnormalloads,the
exhausttemperaturekeepstheDPFabovethe
minimumtemperatureforregenerationsothat
normalparticulatematter(PM)accumulationin
theDPFisexpected.
2.AutoRegeneration
IftheengineECUsensesthattheDPF
backpressurehasincreasedpastanacceptable
threshold,anautoregenerationwilloccur.
Duringtheautoregeneration,theintakethrottle
valvelimitstheairowintotheenginewhile
theinjectorsaddadditionalfuel.Thisprocess
increasestheDPFtemperature,whichallows
accumulatedparticulatetoburnoff.Theauto
regenerationiscompletedwhenneeded.The
machinecancontinuetobeusedduringanauto
regeneration.
Thefollowingguresshowthescreensofthe
autoregenerationprocess.
5

g216606
Figure5
1.StartofAutoRegen
WhentheengineECUdeterminesthatanauto
regenerationisneeded,thealarmchirpsandthe
moduledisplaystheStartofAutoRegenscreen
witha60-secondbargraphtimer(Figure5).
Oncethetimerexpires,theautoregeneration
processbegins.
Note:Noactionisrequiredandyoucan
continuetousethemachineduringtheauto
regenerationprocess.
CAUTION
Duringtheautoregenerationprocess,
theexhausttemperaturesriseandcould
igniteammablematerials.
Usecautionifyouoperatethemachine
aroundammablematerials.
Ifanautoregenerationisneededbutoperating
conditionsdonotallowtheprocesstobegin,
themodulepromptsyoutoincreasetheengine
speedand/orload.
g216605
Figure6
1.IncreaseRPM/Load
Whentheprocessbegins,thescreenchanges
toindicatethattheautoregenerationprocess
isactive.
g216638
Figure7
1.AutoRegenActive
Iftheregenerationisinterrupted,thefollowing
screendisplays:
g216681
Figure8
1.RegenInterrupted
Note:Ifyoushutofftheengineduringthe
regenerationprocess,theprocessresumes
whenyoustarttheengineanditreachesthe
requiredtemperaturelevel.
3.StationaryRegeneration
Overtime,sootaccumulatesintheDPFanda
passiveorautoregenerationisnotsufcient
tounclogthelter.Duringthestationary
regeneration,theengineECUcontrolsengine
speed,load,andair/fuelmixturetoperforma
controlledburnoftheparticulatecollectedinthe
DPF.
Ifastationaryregenerationisrequired,it
mayindicatethattheenginehasbeenidling
excessivelyornotrununderasufcientload.If
multiplesuccessiveregenerationsarerequired,
itmayindicatethattheDPFwillrequireservice
soon,thatanengineproblemexists(e.g.,
incorrectenginefueloroil)orthataDPF
pressuresensorisfailing.
Important:Astationaryregenerationcan
beinitiatedbytheengineECUorbyyou,
theuser.YoucanmonitortheDPFsoot
percentageontheEngine-OffScreenorin
theMaintenanceandServiceMenu.Ifthe
DPFSootpercentageishigh,youmayelect
toinitiateamanualstationaryregeneration
ontheDPFSootPercentagescreeninthe
6

MaintenanceandServiceMenubyselecting
Yesattheprompt.
g217322
Figure9
1.DPFsootpercentage3.Previous
2.StartRegen4.Next
Important:Duringastationaryregeneration,
ensurethatthemachineisparkedona
hard,levelsurfaceinawell-ventilatedarea.
Thisprocessrunsthemachineatahigher
exhausttemperatureforapproximately30
minutestoburnoffcollectedparticulatein
theDPF.
Note:Youcannotusethemachineduringa
stationaryregeneration.
WhentheengineECUdeterminesthata
stationaryregenerationisrequired,themodule
displaystheAllowStationaryRegen?prompt
screen.SelectY(yes)tostartthestationary
regenerationprocessorN(no)todelaythe
process.
Ensurethatthemachinehasatleast1/4
tankoffuel.Disengagetheblades,movethe
motion-controlleverstotheNEUTRAL-LOCK
position,andengagetheparkingbrake.
g216640
Figure10
1.AllowStationaryRegen3.No
2.Yes
•IfyouselectN(no),themoduledisplaysa
120-minutecountdownbargraphscreen.
g216641
Figure11
1.StationaryRegenRequired
Ifyoudonotperformastationary
regenerationbeforethetimerexpires,the
engineentersalimpmodeandtheengine
ECUwillrequirearecoveryregenerationto
beperformed.Whenthemoduleindicates
thattheenginehasenteredlimpmode,the
enginespeedand/orpowerisreducedandit
preventsclutchengagement.
g216677
Figure12
1.EngineLimpModeActive
•IfyouselectY(yes),themodulepromptsyou
tostarttheregenerationprocess(Figure13).
g216675
Figure13
1.StartRegen
A.Shutofftheengineandwaitforall
movingpartstostop.Ensurethatthe
machineisonalevelsurface.
B.Movethecontrolleverstotheneutral
lockpositionandengagetheparking
brake.
Note:Disengagingtheparkingbrake
ormovingthemotion-controllevers
fromtheNEUTRAL-LOCKpositionatany
7

timecancelstheprocessandprompts
youtoengagetheparkingbrakeand
movethemotion-controlleverstothe
NEUTRAL-LOCKposition(Figure14).
g216674
Figure14
1.Setbrakeandneutral
C.Ensurethatthebladesaredisengaged.
D.Ensurethatthemachinehasatleast1/4
tankoffuel.
E.SelectY(yes)fromtheStartRegen
screentoconrmtheregeneration
process(Figure15).
g217322
Figure15
1.DPFSoot%3.Previous
2.StartRegen?4.Next
Theregenerationprocessbeginsandthe
moduledisplaystheRegenActivescreen
(Figure16).Pressingthecancelbutton
cancelstheprocess.
g216678
Figure16
1.RegenActive2.Cancel
Oneof3outcomesresult:
–Complete—iftheprocesscompletes
successfully,themoduledisplaysthe
RegenCompletescreen(Figure17).
Itincludesa5-minutecountdownbar
graph.
Note:Ifyoutakenoactionandthe
5-minutecountdowntimeronthescreen
expires,theengineshutsoff.
g216679
Figure17
1.RegenComplete
–Interrupted—ifyouinterruptthe
process,themoduledisplaystheRegen
Interruptedscreen(Figure18).
Ifyouinitiatedtheprocess,themodule
exitstheprocess.Iftheprocesswas
initiatedbytheengineECU,theECU
placestheengineinlimpmodeand
requestsarecoveryregeneration.
g216681
Figure18
1.RegenInterrupted
8

–Failed—iftheengineECUdetermines
thatarecoveryregenerationcannot
becompleted,themoduledisplays
theRegenFailed—SeeDealerscreen
(Figure19).T akethemachinetoan
AuthorizedServiceDealer.
g216680
Figure19
1.RegenFailed—SeeDealer
MenuSelectionScreen
TheMenuSelectionScreendisplayswhenyouplace
themotion-controlleversintheNEUTRAL-LOCKposition
andpressandholdthe2outsideLDUbuttons.
g228165
Figure20
1.Outsidebuttons2.Menuselectionscreen
TheMenuSelectionScreenallowsyoutocycle
throughthedifferentmenuoptionsbypressingthe
togglebutton.Whenthedesiredmenuoptionis
highlighted,presstheenterbuttontoselectit.
Note:Allmenuoptionsarelockedifthe
motion-controlleversarenotintheNEUTRAL-LOCK
position.
Pressandholdthe2outsidebuttonstoreturntothe
defaultscreen.
Themenuselectionscreenallowsyoutocycle
throughthefollowingscreens.
•MaintenanceandServiceMenu(page9)
•GaugesandMetersMenu(page12)
•AdvancedSettingsMenu(page14)
g038651
Figure21
1.MaintenanceandService4.Cancel/Exit
2.GaugesandMeters5.T ogglebetweenscreens
3.AdvancedSettings6.Enter/Return
MaintenanceandServiceMenu
Youcanscrollbetweenthefollowingscreensinthe
MaintenanceandServicemenu:
•StatusofInputs(page9)
•StatusofOutputs(page10)
•CurrentErrorMessages(page10)
•HydraulicTransOil(page10)
•EngineOil(page11)
•MachineInformation(page11)
•ModuleInformation(page11)
StatusofInputs
Thisscreenlistsalloftheinputstothesystemand
highlightswhichiscurrentlyactive.Inputswith
numericalvaluesdisplaythecurrentvalue.
g030183
Figure22
1.StatusofInputs5.Brake
2.PTOSwitch6.Previous
3.Neutral7.Togglebetweenscreens
4.OilPressure8.Next
9

ThefollowingarealistofitemsavailableintheStatus
ofInputsscreen:
•Systemvoltage
•Enginecommunication(highlightsifmoduleis
communicatingwithengineECU)
•PTOswitch(highlightsifpn)
•Fuelsendervoltage(showsvoltage)
•Neutralswitch(highlightsifon)
•Brakeswitch(highlightsifon)
•Seatswitch(highlightsifon)
•Oilpressureswitch(highlightsifon)
•Enginetemperature(showstemperature)
StatusofOutputs
Thisscreenlistsalloftheoutputsfromthesystem
andhighlightswhichoneiscurrentlyactive.Outputs
withnumericalvaluesdisplaythecurrentvalue.
g038556
Figure23
1.StatusofOutputs3.ClutchOutput
2.SpeedSignal4.EnginePowertoRun
ThefollowingarealistofitemsavailableintheStatus
ofOutputsscreen:
•Enginespeedsignalshowsvoltagesignalsent
fromthesystemtotheengineECU(Engine
ControlUnit).
•PTOoutput(highlightsifon)
•Engineshutdownoutput(highlightsifon)
•Modulecommunication(highlightsifLDUand
MCUarecommunicating)
•Alarm(highlightsifon)
•Starter(highlightsifon)
CurrentErrorMessages
Thisscreendisplaysthecurrenterrorastextwiththe
enginehoursatwhichtheerroroccurred.Thetoggle
buttonallowsyoutoscrollbetweenscreensifmultiple
errorsareactive.Ifonly1erroroccurs,thetoggle
buttondoesnotchangescreens.
g030185
Figure24
1.CurrentError
2.Errordisplay(e.g.,LowOilPressure)
3.Enginehourswhentheerroroccurred
HydraulicTransOil
Thisservicereminderscreendisplaysthehoursuntil
thehydraulictransmissionoilmaintenanceisdue.
g030186
Figure25
1.HydraulicTransOil
2.Reminderdisplay
3.Enginehoursremaininguntiltheserviceisdue
Pressthetogglebuttontoalsodisplaytheengine
hoursatwhicheveryservicereminderresetwas
performed.
g030187
Figure26
1.HydraulicTransOil
2.ServiceHistorydisplay
3.Servicereminderresetwasperformed(e.g.,250and750
enginehours)
10

EngineOil
Thisservicereminderscreendisplaysthehoursuntil
theengineoilmaintenanceisdue.
g030188
Figure27
1.EngineOil
2.Reminderdisplay
3.Enginehoursremaininguntiltheserviceisdue
Pressthetogglebuttontoalsodisplaytheengine
hoursatwhicheveryservicereminderresetwas
performed.
g030189
Figure28
1.Engineoil
2.ServiceHistorydisplay
3.Servicereminderresetwasperformed(e.g.,250and750
enginehours)
DeckGearboxOil
ApplicableModelsOnly
ThisscreendisplaysthehoursuntiltheDeckGear
BoxOilmaintenanceisdue.
g219156
Figure29
1.DeckGearBoxOil
2.Reminderdisplay
3.Enginehoursremaininguntiltheserviceisdue
MachineInformation
Thescreendisplaystheserialnumberandmodel
numberofthemachine.
g030190
Figure30
1.MachineInformation3.Serialnumber
2.Modelnumber
ModuleInformation
Thescreendisplaysthecurrentinstalledversion
ofsoftwareandhardwareforboththeLDU(Logic
DisplayUnit)andtheMCU(MasterControlUnit).
SelectthetogglebuttontoseetheMCUscreen.
g030191
Figure31
1.ModuleInformation4.SoftwareVersion
2.LDU5.Toggle
3.HardwareVersion
g030192
Figure32
1.ModuleInformation3.HardwareVersion
2.MCU4.SoftwareVersion
Toexitthescreen,pressthepreviousornextarrow
keys.Pressingtheenterbuttontakesyoubacktothe
MenuSelectionscreen.
11

g030193
Figure33
1.Exit3.Enter/Return
2.ExitMenu
GaugesandMetersMenu
Youcanscrollbetweenthefollowingscreensinthe
GaugesandMetersmenu:
•EngineHours(page12)
•PTOHours(page12)
•FuelUsed(page12)
•FuelEconomy(page13)
•TripStatistics(page13)
EngineHours
Thisscreendisplaysanon-resettable,totalengine
hourcounterandresettabletripcounter.
g030202
Figure34
1.EngineHours3.Triphours
2.Totalhours4.Resettriphours
ToresettheTriphourmeter,highlighttheTriphour
meterandpresstheResetbutton;toconrmthe
reset,pressY(yes)orN(no)tocancel(Figure35).
g030203
Figure35
1.Reset3.Y(yes)
2.Areyousure?4.N(no)
PTOHours
Thisscreendisplaysanon-resettable,totalPTOhour
counterandaresettabletripPTOcounter.
g030204
Figure36
1.PTOHours3.Triphours
2.Totalhours4.Resettriphours
ToresettheTriphourmeter,highlighttheTriphour
meterandpresstheResetbutton;toconrmthe
reset,pressY(yes)orN(no)tocancel(Figure35).
FuelUsed
ThisscreendisplaysthetotalUSgallons/litersoffuel
usedfromthelasttimeitwasreset.Pressthereset
buttontoresetthefuelusedcounter.
g038362
Figure37
1.FuelUsed3.Reset
2.DisplaysUSgallons/liters
used
12

FuelEconomy
ThisscreendisplaystheUSgallons/litersoffuelused
perenginehour.
g038363
Figure38
1.FuelEconomy2.DisplaysUSgallons/liters
perhour
TripStatistics
Thereare5tripstatisticsscreenstoscrollthoughand
view.
g030207
Figure39
1.TripStatistics2.Viewtripstatistics
Eachscreenfeaturesresettablecountersforthe
followingparameters:EngineHours,PTOHours,and
totalUSgallons/litersoffuelused.
Youcanpauseorstopthecollectionofstatistics
andplayorstartthecollectionoftripstatistics.
Forexample,whenTripStatistics1ispaused,the
statisticsarehighlightedandtheresetbuttonis
available.Pressingtheresetbuttonresetsall3
parameters.Pressingtheplaybuttonstartsdata
collection.
g038364
Figure40
1.TripStatistics14.DisplaysUSgallons/liters
offuel
2.Displaysenginehours5.Play/Start
3.DisplaysPTOhours6.Reset
Whenatripstatisticisplaying,thestatisticsarenot
highlightedandtheresetbuttonisblackedoutand
notavailable.Pressingthepausebuttonstopsthe
collectionofdata.
g038365
Figure41
1.TripStatistics44.DisplaysUSgallons/liters
offuel
2.Displaysenginehours5.Pause/Stop
3.DisplaysPTOhours
PressthetogglebuttonontheTripStatistics5screen
togobacktothemainTripStatisticsscreen.
13

AdvancedSettingsMenu
Whentheadvancedsettingsmenuisselected,the
modulepromptsyoufora4digitpasscode.The
defaultdigitsonthedisplayscreenare0000.
g030221
Figure42
1.Enterpassword4.Enter/Return
2.Activedigits5.Decrease
3.Increase
Thepasscodeis1982.Whentheactivedigitis
highlighted,presstheincreaseordecreasebuttonsto
scrollthroughdigitsfrom0to9.Pressentertoselect
thehighlighteddigit.
Ifyouentertheincorrectpassword,themoduletakes
youbacktothemenuselectscreen.Whenthecorrect
passwordisentered,youcanscrollbetweenthe
followingscreens:
•EngineOil(page14)
•HydraulicTransOil(page14)
•HistoricalError(page14)
•Alarms(page15)
•EngineSettings(page15)
•CalibrateEngineSettings(page16)
•FactoryDefaults(page16)
EngineOil
Afterperformingthenecessarymaintenance,this
screenallowsyoutoresetthenumberofhoursuntil
theengineoilserviceisdue.
g030245
Figure43
1.EngineOil3.Remaininghoursuntil
service
2.Reminderdisplay4.Reset
Pressingtheresetbuttonbringsupascreenaskingto
conrmtheresetreminder.
HydraulicTransOil
Afterperformingthenecessarymaintenance,this
screenallowsyoutoresetthenumberofhoursuntil
thehydraulictransmissionoilserviceisdue.
g030246
Figure44
1.HydraulicTransOil3.Remaininghoursuntil
service
2.Reminderdisplay4.Reset
Pressingtheresetbuttonbringsupascreenaskingto
conrmtheresetreminder.
Everytimeyouresetthehydraulictransmissionoil
servicereminder,themodulepromptsyoutoselect
whetherthemachinewasservicedwithT oroPremium
HydraulicOil.PressingY(yes)orN(no)determines
thecorrectmaintenanceschedule.
HistoricalError
Thisscreendisplayserrorsthatarenolongeractive.
Thelogkeepsarunningcountofthenumberoftimes
theerrorhasoccurredduringthelifeofthemachine
andtheenginehouratwhichthelastoccurred.The
logdisplaystheerrorsstartingwiththemostrecent
occurrence.
g030224
Figure45
1.HistoricalError3.Numberoftimestheerror
occurredduringlifeof
machine(e.g.,3X)
2.Currenterror(e.g.LowOil
Pressure)
4.Enginehouratwhichthe
errorlastoccurred
14

Alarms
Thealarmsscreenallowsyoutoactivateand
deactivatetheaudiblealarmforindividualerrors.
PresstheEnterbuttontoaccessindividualerroralarm
settings.
Note:Notallaudiblealarmscanbedeactivated.
g030225
Figure46
1.Alarms3.AudibleAlerts
2.Activate/Deactivate4.Enter
Thehighlightederrornameindicatesthattheaudible
alarmisactive.Pressingentermodiesthestatusof
theaudiblealarmtoOnorOff.
g038366
Figure47
1.Alarms4.Toggle
2.ClutchOvercurrent5.Enter
3.FuelLow
Youcandeactivatetheaudiblewarningforthe
followingerrors:
•ServiceAirFilter
•ServiceEngineOil
•ServiceTransmissionOil
•TransOverTemp
•ServiceGearBoxOil(asapplicable)
•FuelLow
•ClutchOvercurrent
•ClutchResetRequired
•EngineErrorCodes
•SystemOvervoltage>16VDC
•SystemUndervoltage<9VDC
•SystemVoltageLow
•Anti-Stall
EngineSettings
Thisscreenallowsyoutoadjusttheenginespeed
attheMaximum,Efcient,andLowsetpointsfor
bothtransport(clutchdisengaged)andmow(clutch
engaged)modesin50rpmincrements.
g030227
Figure48
1.EngineSettings2.AdjustEngineSpeeds
Pressingtheuparrowincreasestheenginespeed
whilepressingthedownarrowdecreasestheengine
speed.PressingtheEnterbuttonconrmsthe
speedandautomaticallymovesyoutothenext
screen/enginespeedsetpoint.
g030228
Figure49
1.EngineSettings4.Uparrow—Increase
2.SetLowMowSpeed5.Enter
3.Enginespeedinrpm(e.g.,
3,600rpm)
6.Downarrow—Decrease
Thesystemdoesnotallowthefollowingtooccur:
•Theefcientspeedcannotbesethigherthanthe
maximumspeed.
•Thelowspeedcannotbesethigherthanthe
efcientspeed.
Note:Youcansetthemaximumspeedequaltothe
efcientmowspeedtousetheefcientmodewhile
mowing.
15

CalibrateEngineSettings
Thisscreenallowsthecalibrationoftheactualengine
speedtomatchthecommandedenginespeed.
Theenterbuttonblacksoutifthebladesarenot
disengaged,theparkingbrakeisnotengaged,and
themotion-controlleversarenotintheNEUTRAL-LOCK
position.Oncetheyare,presstheEnterbuttonto
startthecalibrationprocess.
g030234
Figure50
1.CalibrateEngineSettings2.StartCalibration
Ananimatedhourglassappearsindicatingthe
calibrationisinprocess.
g030235
Figure51
1.CalibrateEngineSpeed3.Processing
2.Calibrating
Oncethecalibrationiscomplete,youcantoggleback
totheprimaryCalibrateEngineSpeedscreen.
g030237
Figure52
1.CalibrationEngineSpeed3.Togglebetweenscreens
2.CalibrationComplete
FactoryDefaults
Thisscreenallowsyoutoresetsystemsettingsback
tothefactorydefaultsettings.PressingtheEnter
buttonbringsupconrmationscreen;pressY(yes)to
resetorN(no)tocancel.
Note:Resettingthesystemreturnstheenginespeed
settingsandalarmsettingsbacktothefactorydefault
settings.
g030238
Figure53
1.FactoryDefaults2.Reset
Whentheexitscreenappears,presstheenterbutton
togobacktotheMenuSelectionscreen.
ReturningtotheDefault
Screen(Engine-Onor
Engine-Off)
Thereare3waystoreturntothedefaultscreen:
•Pressthepreviousornextarrowkeysuntilthe
ExitscreenappearsthenpresstheEnterbuttonto
returntotheMenuSelectionscreen.
•TurntheignitionkeytotheOFFpositionand
eitherrestarttheengineorturnthekeytotheON
position.
•Pressandholdthe2outsidebuttons.
SettingEngineSpeeds
Atstartup,thesystemdefaultstotheLowengine
speed.Theiconontheinformationscreenis
highlighted.
•PressthebuttonbelowtheEfcientSpeedMode
icontoincreasetheenginespeedtotheEfcient
enginespeed.
TheEfcientSpeedModeiconishighlighted.
•PressthebuttonbelowtheMaximumSpeedMode
icontoincreasetheenginespeedtothemaximum
enginespeed.
TheMaximumSpeedModeiconishighlighted.
Note:IfyouengagethePTOswitchatanyspeed
setting,theenginespeedncreasestothemowspeed.
16

Adjustingthe
Electronically-Controlled
LowModeSpeed
Adjustment
Whenoperatinginlowmowmode,pressandholdthe
LowSpeedModebuttonreducetheenginespeed
(minimumof2,250rpm).PresstheLowSpeedMode
buttonagaintoreturntheenginetothedefaultsetting.
AutoIdleDownMode
Iftheoperatorleavestheseatandthesafetyinterlocks
allowtheenginetoremainrunning,thesystementers
theautoidlemodeandautomaticallysettheengine
speedtothelowtransportspeed.Whenyoureturn
totheseat,thesystemautomaticallyreturnstothe
previouslyselectedenginespeedmode.Ifyouselect
anotherenginespeedsetting,thesystemexitsthe
autoidlemodeandtheenginerunsattheselected
speed.
ErrorMessages
Ifanerroroccurs,amessagedisplaysinplaceofthe
enginetemperature,enginespeed,andfuellevel.In
additiontodisplayingthefaultastext,thesystem
turnstheLEDredandsoundstheaudiblealarm.
•Thesystemiscapableofdisplayingthefollowing
errors:
–ServiceAirFilter:Anairlterisrequired.
–ServiceEngineOil:Engineoilmaintenance
isrequired.
–ServiceTransmissionOil:Transmissionoil
maintenanceisrequired.
–ServiceDeckGearboxOil(asapplicable):
Deckgearboxoilmaintenancerequired.
–LowOilPressure:Lowengine-oilpressureis
detected.
–FuelLow:Thefuellevelislow.
–EngineOverTemperature:Theengineover
temperatureisdetected.
–SystemOvervoltage>16VDC:Thesystem
voltageistoohigh(greaterthan16V).
–SystemUndervoltage<9VDC:Thesystem
voltageistoolow(greaterthan9V).
–ClutchOvercurrent:Thecuttingclutch
currentistoohigh.
–ClutchResetRequired:ThePTOswitch
mustbeturnedoffandtoactivatethePTO.
–EngineErrorCodes:Thesystemdisplays
engineerrorcodesprovidedbytheengine
manufacturer.
–ClutchOutputFailure:Theclutchoutputis
openorshorted.
–SystemVoltageLow:Thevoltageistoolow
(lessthan12.3V).
–EngineCommunicationError:The
communicationbetweenengineandmodule
waslost.
–ModuleCommunicationError:The
communicationbetweentheLDUandMCU
moduleswaslost.
–Anti-StallActive:Themowerdeckhasbeen
disengagedinordertopreventtheenginefrom
stalling.
–EngineLimpModeActive:TheengineECU
hasplacedtheengineintolimpmode,which
maylimittheenginespeedand/ordecrease
theenginepower.Asaresult,themodule
disengagestheclutch.
•Youcanacknowledgeandsilencesomeofthe
errorslistedabove.Movethemotion-control
leverstotheNEUTRAL-LOCKpositionandpress
andholdthemiddlebutton.
Acknowledginganerrorremovestheerror
messagefromtheenginetemperature,engine
speed,orfuelleveliconareaandsilencethe
audiblealarm.However,theerrorcontinues
todisplayontheactiveerrorscreeninthe
MaintenanceandServiceMenuandthestatus
LEDcontinuestobeilluminatedred.
–Thefollowingerrorsemitaslowchirpingsound
thatyoucanacknowledgeandsilence:
◊ServiceEngineOil
◊ServiceTransmissionOil
◊FuelLow
◊ClutchOvercurrent
◊ClutchResetRequired
◊EngineErrorCodes
◊Anti-StallActive
◊ServiceAirFilter
◊ServiceDeckGearBox
–Thefollowingerrorsemitafastchirpingsound
andcanbeacknowledgedandsilenced:
◊SystemOvervoltage>16VDC
◊SystemUndervoltage<9VDC
–Thefollowingerrorcodesemitafastchirping
soundandcannotbeacknowledgedor
silenced.
◊LowOilPressure
◊EngineOverTemperature
17

◊EngineCommunicationError
◊ModuleCommunicationError
◊ClutchOutputFailure
◊EngineLimpModeActive
•Inordertoprotectthesystemcomponentsfrom
exceedingthresholdlimits,thesystemlimitsthe
enginespeedand/ordisengagestheclutch,which
allowsyoutodrivethemachineontoatraileror
returntoaservicearea.
Thesearethefollowingerrorsthatmayoccur:
1.ClutchOvercurrent
Ifanovercurrenteventoccurs,thesystem
limitstheenginespeedtotheEfcient
TransportModespeedandplacesthe
machineinSafeTransportMode.Safe
TransportModelimitstheenginespeed,
locksoutthePTO,anddisengagesthe
clutch;aClutchOvercurrenterrormessage
willdisplay.CyclingthekeyswitchtotheOFF
andthentotheONpositionclearsthefault.
2.SystemOvervoltage>16VDC
Ifthevoltageexceeds16V,thesystemwill
disengagetheclutchanddisplaysaSystem
Overvoltage>16VDCerrormessage.
3.SystemUndervoltage<9VDC
Ifthevoltageislessthan9V,thesystem
willnotallowclutchengagementanddisplay
theerrorSystemUndervoltage<9VDC.If
theclutchwasengagedbeforetheerror
occurred,thesystemallowstheclutchto
remainengaged;however,lowvoltagemay
causetheclutchtodisengageitself.
4.LowOilPressure
Iflowengine-oilpressureisdetected,the
systemlimitsenginespeedtotheEfcient
TransportModespeedandplacesthe
machineinSafeTransportMode.Safe
TransportModelimitstheenginespeed,
locksoutthePTO,anddisengagesthe
clutch;aLowOilPressuremessagewill
display.CyclingthekeyswitchtotheOFF
andthentotheONpositionclearsthefault.
5.EngineOverTemperature
Whentheenginebeginstooverheat,the
systemashestheenginetemperature
bargraphandchirpstheaudiblealarm.
Ifthetemperaturerisesabovetheupper
limit,thesystemlimitstheenginespeed
totheEfcientTransportModespeedand
placesthemachineinSafeTransportMode.
SafeTransportModelimitstheengine
speed,locksoutthePTO,anddisengages
theclutch;anEngineOverT emperature
messagedisplays.Thefaultclearsoncethe
temperaturefallsbelowasafelimit.
6.TransmissionOverTemperature
Whenthetransmissionbeginstooverheat,
thesystemashesthetransmission
temperaturebargraphandchirpstheaudible
alarm.Ifthetemperaturerisesabovethe
upperlimit,thesystemlimitstheengine
speedtotheEfcientTransportModespeed
andplacesthemachineinSafeTransport
Mode.SafeTransportModelimitstheengine
speed,locksoutthePTO,anddisengages
theclutch;aTransmissionOverTemperature
messagedisplays.Thefaultclearsoncethe
temperaturefallsbelowasafelimit.
7.EngineLimpModeActive
IftheengineECUdeterminesthata
signicantengineissuehasoccurredorthat
theDPFrequiresaRecoveryRegeneration,
itplacestheengineinalimporbackup
modewhereenginespeedand/ordecrease
enginepower.Inordertoprotectthesystem
components,themodulelocksoutthePTO
anddisplaytheEngineLimpModeActive
message.
18

Troubleshooting
SystemErrorMessageStatusLEDSystemActionsIssueDescriptionRecommendedCorrectiveAction
ServicetheEngineOilBlinkRedTheengineoilservice
isdue.
Replacetheengineoilandlter.
Followtheresetprocedure;referto
EngineOil(page14).
Servicethe
TransmissionOilBlinkRedThetransmissionoil
serviceisdue.
Replacethetransmissionoiland
lter(s).Followtheresetprocedure;
refertoHydraulicTransOil(page14).
LowOilPressureBlinkRed
SafeTransport
Mode—enginelimited
toEfcientmodeandthe
PTOisdisengaged.
Theengine-oil
pressureisbelow
limit.
Cyclethekeyswitchtoclearthe
fault.Checktheoillevel.Contactan
AuthorizedServiceDealer.
Green
Singlealarmchirpand
enginetemperature
displayashes.
Theengine
temperatureishigh.
Checktheoillevel.Cleandebrisfrom
theengine.Inspecttheenginefan.
ContactanAuthorizedServiceDealer.
EngineOver
TemperatureBlinkRed
SafeTransport
Mode—enginelimited
toEfcientmodeandthe
PTOisdisengaged.
Theengine
temperatureisabove
limit.
Checktheoillevel.Cleandebrisfrom
theengine.Inspecttheenginefan.
ContactanAuthorizedServiceDealer.
FuelLowBlinkRedThefuellevelislow.Checkthefuellevelandaddfuelas
necessary.
SystemOvervoltage
>16VDCBlinkRed
Disallowclutch
engagement/Disengage
theclutch.
Thesystemvoltageis
excessive(above16
V).
Checkthebatteryandengine
chargingsystem.Contactan
AuthorizedServiceDealer.
SystemVoltageLowBlinkRedSystemvoltagebelow
12.3V.
Checkthebatteryandengine
chargingsystem.Contactan
AuthorizedServiceDealer.
SystemUnder
voltage<9VDCBlinkRed
Disallowclutch
engagement/Disengage
clutch.
Thesystemvoltageis
belowthelowerlimit
of9V.
Checkthebatteryandengine
chargingsystem.Contactan
AuthorizedServiceDealer.
ClutchOvercurrentBlinkRed
SafeTransport
Mode—enginelimited
toEfcientmodeandthe
PTOisdisengaged.
Theclutchcurrentis
abovethelimit.
Cyclethekeyswitchtoclearthe
fault.CheckthePTOclutchcondition
andtherelatedwiring.Contactan
AuthorizedServiceDealer.
ClutchResetRequiredAlternating
green/orange
ThePTOswitchis
engagedandthe
modulehaslatched
theclutchoutputOff.
CyclethePTOswitchtotheOFF
positionandbacktotheONposition
toengagetheclutch.
ClutchOutputFaultBlinkRedTheclutchoutputhas
ashortorisopen.
IftheclutchisstuckintheONposition,
discontinueuseandcontactan
AuthorizedServiceDealer.Check
theclutchconnectionandassociated
wiringforanopencircuit.
EngineMILErrorsBlinkRedTheECUhasdetected
afault.
Seetheengineowner’smanualforthe
errordescriptionandtroubleshooting
information.
Engine
CommunicationErrorBlinkRed
Thecommunication
betweenthemodule
andtheengineECU
hasbeenlost.
Checktheelectricalconnectionsat
themodule,interconnectbetween
theenginewireharness,andchassis
harness.Checktheconnections
attheengineECU.Contactan
AuthorizedServiceDealer.
Module
CommunicationErrorBlinkRed
SafeTransport
Mode—enginelimited
toEfcientmodeandthe
PTOisdisengaged.
Thecommunication
betweentheLDU
moduleandMCU
modulehasbeenlost.
Checktheelectricalconnectionsat
theLDUandMCUmodule.
19